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1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // soc-devres.c -- ALSA SoC Audio Layer devres functions | |
4 | // | |
5 | // Copyright (C) 2013 Linaro Ltd | |
a0b03a61 MB |
6 | |
7 | #include <linux/module.h> | |
8 | #include <linux/moduleparam.h> | |
9 | #include <sound/soc.h> | |
21585ee8 | 10 | #include <sound/dmaengine_pcm.h> |
a0b03a61 | 11 | |
0fae253a PLB |
12 | static void devm_dai_release(struct device *dev, void *res) |
13 | { | |
14 | snd_soc_unregister_dai(*(struct snd_soc_dai **)res); | |
15 | } | |
16 | ||
17 | /** | |
18 | * devm_snd_soc_register_dai - resource-managed dai registration | |
19 | * @dev: Device used to manage component | |
20 | * @component: The component the DAIs are registered for | |
21 | * @dai_drv: DAI driver to use for the DAI | |
22 | * @legacy_dai_naming: if %true, use legacy single-name format; | |
23 | * if %false, use multiple-name format; | |
24 | */ | |
25 | struct snd_soc_dai *devm_snd_soc_register_dai(struct device *dev, | |
26 | struct snd_soc_component *component, | |
27 | struct snd_soc_dai_driver *dai_drv, | |
28 | bool legacy_dai_naming) | |
29 | { | |
30 | struct snd_soc_dai **ptr; | |
31 | struct snd_soc_dai *dai; | |
32 | ||
33 | ptr = devres_alloc(devm_dai_release, sizeof(*ptr), GFP_KERNEL); | |
34 | if (!ptr) | |
35 | return NULL; | |
36 | ||
37 | dai = snd_soc_register_dai(component, dai_drv, legacy_dai_naming); | |
38 | if (dai) { | |
39 | *ptr = dai; | |
40 | devres_add(dev, ptr); | |
41 | } else { | |
42 | devres_free(ptr); | |
43 | } | |
44 | ||
45 | return dai; | |
46 | } | |
47 | EXPORT_SYMBOL_GPL(devm_snd_soc_register_dai); | |
48 | ||
a0b03a61 MB |
49 | static void devm_component_release(struct device *dev, void *res) |
50 | { | |
58f30150 MR |
51 | const struct snd_soc_component_driver **cmpnt_drv = res; |
52 | ||
53 | snd_soc_unregister_component_by_driver(dev, *cmpnt_drv); | |
a0b03a61 MB |
54 | } |
55 | ||
56 | /** | |
57 | * devm_snd_soc_register_component - resource managed component registration | |
58 | * @dev: Device used to manage component | |
59 | * @cmpnt_drv: Component driver | |
60 | * @dai_drv: DAI driver | |
61 | * @num_dai: Number of DAIs to register | |
62 | * | |
63 | * Register a component with automatic unregistration when the device is | |
64 | * unregistered. | |
65 | */ | |
66 | int devm_snd_soc_register_component(struct device *dev, | |
67 | const struct snd_soc_component_driver *cmpnt_drv, | |
68 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
69 | { | |
58f30150 | 70 | const struct snd_soc_component_driver **ptr; |
a0b03a61 MB |
71 | int ret; |
72 | ||
73 | ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL); | |
74 | if (!ptr) | |
75 | return -ENOMEM; | |
76 | ||
77 | ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai); | |
78 | if (ret == 0) { | |
58f30150 | 79 | *ptr = cmpnt_drv; |
a0b03a61 MB |
80 | devres_add(dev, ptr); |
81 | } else { | |
82 | devres_free(ptr); | |
83 | } | |
84 | ||
85 | return ret; | |
86 | } | |
87 | EXPORT_SYMBOL_GPL(devm_snd_soc_register_component); | |
0e4ff5c8 MB |
88 | |
89 | static void devm_card_release(struct device *dev, void *res) | |
90 | { | |
91 | snd_soc_unregister_card(*(struct snd_soc_card **)res); | |
92 | } | |
93 | ||
94 | /** | |
95 | * devm_snd_soc_register_card - resource managed card registration | |
96 | * @dev: Device used to manage card | |
97 | * @card: Card to register | |
98 | * | |
99 | * Register a card with automatic unregistration when the device is | |
100 | * unregistered. | |
101 | */ | |
102 | int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card) | |
103 | { | |
ebff6547 | 104 | struct snd_soc_card **ptr; |
0e4ff5c8 MB |
105 | int ret; |
106 | ||
107 | ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL); | |
108 | if (!ptr) | |
109 | return -ENOMEM; | |
110 | ||
111 | ret = snd_soc_register_card(card); | |
112 | if (ret == 0) { | |
ebff6547 | 113 | *ptr = card; |
0e4ff5c8 MB |
114 | devres_add(dev, ptr); |
115 | } else { | |
116 | devres_free(ptr); | |
117 | } | |
118 | ||
119 | return ret; | |
120 | } | |
121 | EXPORT_SYMBOL_GPL(devm_snd_soc_register_card); | |
21585ee8 LPC |
122 | |
123 | #ifdef CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM | |
124 | ||
125 | static void devm_dmaengine_pcm_release(struct device *dev, void *res) | |
126 | { | |
127 | snd_dmaengine_pcm_unregister(*(struct device **)res); | |
128 | } | |
129 | ||
130 | /** | |
131 | * devm_snd_dmaengine_pcm_register - resource managed dmaengine PCM registration | |
132 | * @dev: The parent device for the PCM device | |
133 | * @config: Platform specific PCM configuration | |
134 | * @flags: Platform specific quirks | |
135 | * | |
136 | * Register a dmaengine based PCM device with automatic unregistration when the | |
137 | * device is unregistered. | |
138 | */ | |
139 | int devm_snd_dmaengine_pcm_register(struct device *dev, | |
140 | const struct snd_dmaengine_pcm_config *config, unsigned int flags) | |
141 | { | |
142 | struct device **ptr; | |
143 | int ret; | |
144 | ||
145 | ptr = devres_alloc(devm_dmaengine_pcm_release, sizeof(*ptr), GFP_KERNEL); | |
146 | if (!ptr) | |
147 | return -ENOMEM; | |
148 | ||
149 | ret = snd_dmaengine_pcm_register(dev, config, flags); | |
150 | if (ret == 0) { | |
151 | *ptr = dev; | |
152 | devres_add(dev, ptr); | |
153 | } else { | |
154 | devres_free(ptr); | |
155 | } | |
156 | ||
157 | return ret; | |
158 | } | |
159 | EXPORT_SYMBOL_GPL(devm_snd_dmaengine_pcm_register); | |
160 | ||
161 | #endif |